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Mechanism of Stress Release in RB-SiC Ceramic Joints Bonded by Eucryptite/glass Composite Braze
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Panpan LIN1, Kaikai YU1, Tiesong LIN1, Peng HE1, Shouxiang LIU2, Ligang XU2, Weimin LONG3, Li BAO3, Jia MA3
Journal of the Chinese Ceramic Society | 2020, 48(3) : 408 - 415
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Journal of the Chinese Ceramic Society | 2020, 48(3): 408-415
Mechanism of Stress Release in RB-SiC Ceramic Joints Bonded by Eucryptite/glass Composite Braze
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Panpan LIN1, Kaikai YU1, Tiesong LIN1, Peng HE1, Shouxiang LIU2, Ligang XU2, Weimin LONG3, Li BAO3, Jia MA3
Affiliations
  • 1.State Key Laboratory of Advanced Welding and Joining, Harbin Institute of Technology, Harbin 150001, China
  • 2.Beijing Institute of Radio Measurement, Beijing 100845, China
  • 3.State Key Laboratory of Advanced Brazing Filler Metals and Technology, Zhengzhou Research Institute of Mechanical Engineering, Zhengzhou 450001, China

    • LIN Panpan (1987-), female, Ph.D., Lecturer. E-mai:

About Author:

LIN Panpan (1987-), female, Ph.D., Lecturer. E-mai:

Published: 2020-03-20 doi: 10.14062/j.issn.0454-5648.20190367
Outline
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To solve thermal mismatch problem in the bonding process of RB-SiC ceramic using borosilicate glass braze (BS), β-eucryptite/BS composite braze (BSL) was designed. The effect of β-eucryptite addition on a) the characteristic temperature, thermal expansion coefficient and wettability of composite glass braze, as well as b) the microstructure and mechanical properties of joints was investigated. The thermal expansion coefficient of BSL decreases and its rate increases with the increase of β-eucryptite amount. Also, the characteristic temperature of BSL and its rate both increase with the increase of β-eucryptite amount. The apparent contact angle of BSL increases at the same temperature, and the variation of apparent contact angle along with temperature becomes slow. The RB-SiC/composite glass solder (BSL3)/RB-SiC joint has the similar interface to the RB-SiC/BS/RB-SiC joint bonded at 850 ℃ for 10 min. However, in the glass seam, β-eucryptite turns into massive gray KAlSiO4 crystals (i.e., kaliophilite). The massive KAlSiO4 crystals with a negative expansion characteristic can reduce the thermal expansion coefficient and prevent the crack propagation, thus strengthing the joint. The shear strength of the joint after reinforcement increases from 5.2 MPa to 10.9 MPa.

reaction sintering silicon carbide ceramic  /  composite glass braze  /  microstructure  /  shear strength
林盼盼, 于凯凯, 林铁松, 何鹏, 刘守相, 徐李刚, 龙伟民, 鲍丽, 马佳. 锂霞石复合玻璃钎料连接碳化硅陶瓷接头的应力缓释机理. 硅酸盐学报, 2020 , 48 (3) : 408 -415 . DOI: 10.14062/j.issn.0454-5648.20190367
Panpan LIN, Kaikai YU, Tiesong LIN, Peng HE, Shouxiang LIU, Ligang XU, Weimin LONG, Li BAO, Jia MA. Mechanism of Stress Release in RB-SiC Ceramic Joints Bonded by Eucryptite/glass Composite Braze[J]. Journal of the Chinese Ceramic Society, 2020 , 48 (3) : 408 -415 . DOI: 10.14062/j.issn.0454-5648.20190367
Appendix
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Year 2020 volume 48 Issue 3
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Article Info
doi: 10.14062/j.issn.0454-5648.20190367
  • Receive Date：2019-05-31
  • Online Date：2026-10-29
  • Published：2020-03-20
Article Data
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History
  • Received：2019-05-31
  • Revised：2019-07-01
Funding
Affiliations
    1.State Key Laboratory of Advanced Welding and Joining, Harbin Institute of Technology, Harbin 150001, China
    2.Beijing Institute of Radio Measurement, Beijing 100845, China
    3.State Key Laboratory of Advanced Brazing Filler Metals and Technology, Zhengzhou Research Institute of Mechanical Engineering, Zhengzhou 450001, China

Corresponding:

LIN Tiesong (1978-), male, Ph.D., Professor. E-mail:
HE Peng (1972-), male, Ph.D., Professor.
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Citations
表12种不同金属材料的力学参数
科
Family		 属数
Number of
genus		 种数
Number of
species		 占总种数比例
Percentage of
total species (%)		 属
Genus		 种数
Number of
species		 占总种数比例
Percentage of total
species (%)
鹅膏菌科Amanitaceae 2 11 5.26 鹅膏菌属 Amanita 10 4.78
小菇科 Mycenaceae 2 12 5.74 丝盖伞属 Inocybe 5 2.39
多孔菌科 Polyporaceae 8 14 6.70 蜡蘑属 Laccaria 5 2.39
红菇科 Russulaceae 3 23 11.00 小皮伞属 Marasmius 6 2.87
小菇属 Mycena 11 5.26
光柄菇属 Pluteus 5 2.39
红菇属 Russula 17 8.13
栓菌属 Trametes 5 2.39
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